<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    var arr1 = [{ label: '男', value: 1 }, { label: '女', value: 0 }]
    // // 封装函数
    function f(arr) {
      // 声明空对象
      const obj1 = {}
      // 遍历数组
      arr.forEach(item => obj1[item.value] = item.label)
      return obj1
    }
    // 接收返回结果
    var obj = f(arr1);
    console.log(obj)
  </script>
</body>

</html>